Answer:
B) 19 years old
Step-by-step explanation:
x+y=30
2y-3=x
--------------
2y-3+y=30
3y-3=30
3y=30+3
3y=33
y=33/3
y=11
x+11=30
x=30-11
x=19
What is the sum of 10.8 +
42%?
52
52
53
53
jjgjghghghghghghhghg
The graphs below have the same shape what is the equation of the red graph
Answer: D. 5 - x^4
Step-by-step explanation: We can see that the blue function is translated three units up, and inverted, so its leading coefficient is negative. The blue function can be rewritten as -x^4 + 3 to reflect these transformations. The only difference between the blue and the red function is that the red is two units higher, or five units total from the origin. Since they are the same shape, it will have a -x^4 in the formula, but since it is translated five units up its formula will be -x^4 + 5, which is also equal to 5 - x^4.
Kent buys a pen that costs $1.21. How much will
4 pens cost?
Answer:
4 pens will cost $4.84
Step-by-step explanation:
1.21 times 4 = 4.84
A square has an area of 494949 square meters.
What is the perimeter of the square?
Necessary Formulas:
Area of a Square = base x height OR length^2
---All sides of a square are the same length!
Perimeter of a Square = 4 x length
Steps to Solve:
Area of the square = length^2
49 = length^2
length = 7
Perimeter of the square = 4 x length
Perimeter = 4 x 7
Perimeter = 28
Answer:
The perimeter of the square is 28 meters.
Hope this helps!
Solve for s.
3(s+8)=36
s = 2
s = 4
s = 8
s = 12
Answer:
s = 4
Step-by-step explanation:
3(s + 8) = 36
Simplify the distributive property:
⇒ 3s + 24 = 36
Subtract 24 both sides:
⇒ 3s = 36 - 24
⇒ 3s = 12
Divide 3 both sides:
⇒ 3s/3 = 12/3
⇒ s = 4
a cylinder has a radius of 5 and height of 3. what is the volume
Answer:
236 cubic units (to 3 significant figures)
Step-by-step explanation:
volume of a cylinder = [tex]\pi[/tex]r²h (where r = radius and h = height)
Therefore, volume = [tex]\pi[/tex] x 5² x 3
= [tex]\pi[/tex] x 25 x 3
= 75[tex]\pi[/tex]
= 236 cubic units (to 3 significant figures)
Suppose you have a dart board hanging on a wall If you throw a dart randomly at the wall, and assuming your dart lands somewhere on the wall , what is the probability that your dart will land a) in region X b) in region c) in region Z
Probabilities are used to determine the chances of events
The probability of landing in region X is 0.087The probability of landing in region Y is 0.109The probability of landing in region Z is 0.153The probability of landing in region XThe area of region X is:
[tex]A = \pi r^2[/tex]
So, we have:
[tex]X = 3.14 * 4^2[/tex]
[tex]X = 50.24[/tex]
The area of the dart is:
[tex]A = Length * Width[/tex]
[tex]A = 24 * 24[/tex]
[tex]A = 576[/tex]
The probability of landing in region X is then calculated as:
[tex]P(X) = 50.24/576[/tex]
[tex]P(X) = 0.087[/tex]
The probability of landing in region YThe area of region Y is:
[tex]A = \pi R^2 - \pi r^2[/tex]
So, we have:
[tex]Y = 3.14 * 6^2 -3.14 *4^2[/tex]
[tex]Y = 62.8[/tex]
The probability of landing in region Y is then calculated as:
[tex]P(Y) =62.8/576[/tex]
[tex]P(Y) =0.109[/tex]
The probability of landing in region ZThe area of region Z is:
[tex]A = \pi R^2 - \pi r^2[/tex]
So, we have:
[tex]Z = 3.14 * 8^2 -3.14 *6^2[/tex]
[tex]Z = 87.92[/tex]
The probability of landing in region Z is then calculated as:
[tex]P(Z) = 87.92/576[/tex]
[tex]P(Z) = 0.153[/tex]
Hence, the probability of landing in region Z is 0.153
Read more about probabilities at:
https://brainly.com/question/25870256
help pls you get 27 points
Which inequality is true?
A. [5] < [-3]
B. [2] < [-4]
C. [-5] < [-3]
D. [-4] < [-2]
Answer:
C. [-5] < [-3] || D. [-4] < [-2]
Step-by-step explanation:
in A. 5 should be greater, > than -3
in B. 2 should be greater, > than -4
in C. its correct answer. true statement.
in D. its correct answer. true statement.
Donna took out a loan for 11 months and was charged simple interest at an annual rate of 2.4%.
The total interest she paid on the loan was $143.
How much money did Donna borrow?
143 = x × 0.024 × (11/12)
143 = x × 0.022
143/0.022 = x
6500 = x
Donna borrowed $6500
1. Which of the following is a geometric sequence?
5, -25, 125, -625,...
100,50, 0, -50,...
13,16,19, 22,...
2,4, 16,48,...
Answer:
5, -25, etc
Step-by-step explanation:
It involves multiplying to get each answer, so it is geometric
Answer:
5, -25, 125, -625,...
Step-by-step explanation:
In order to test if something is geometric, just divide each element by the previous element. It is geometric if the number is always the same.
-25/5=-5
125/-25=-5
-625/125=-5
The other options do not fall into this pattern.
what is the mean of 2, 8, 4, 10, 6 ?
PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION
Answer:
[tex] {(x - 3) }^{2} = 30 - 2x \\ { \times }^{2} - 6x + 9 = 30 - 2x \\ x {}^{2} - 4x - 21 = 0 \\ (x - 7)(x + 3) \\ x = 7 \\ x = - 3[/tex]
Daniel bought 3 sweaters that each cost the same amount and a jacket that cost $40. The items he bought cost a total of $100 before tax was added. What was the cost of each sweater? Write an equation that represents this situation and solve.
Please somebody help with this question, thanks!!!.
Write the equation of the line in Point-Slope Form given the information below.
Slope =−2
=
−
2
Point =(1,−1)
=
(
1
,
−
1
)
Point-Slope Form:
Answer:
y= -2x+1
Step-by-step explanation:
y=mx+b
-1= -2(1)+b
-1= -2+b
b= 1
y= -2x+1
5(3x+10)
help me with the answer
Answer:25
Step-by-step explanation:
so use fractoin to anwer
Answer:
15x+50
Step-by-step explanation:
multiply both numbers that are inside the parentheses by the number ouside of it. So 5×3=15, but the 3 also had an x atratched to it, hence 15x and 5×10=50, so combine them and you have your answer of 15x+50.
chef ollie has a community garden.she uses 2/6 of the farmland to grow beets and 1/6 of the farmland to grow kale. how much of the farmland is left? color in the grids to show how chef ollie might use the rest of her community garden. Write an equation to match.
Answer:
1/2 of farm land left.
Step-by-step explanation:
Ok so we know that Chef Ollie has a community garden. And that she uses [tex]\frac{2}{6}[/tex] of the farmland to grow beets. The denominator 6 lets you know immediately that the land is divided into equal 6 pieces. We also know that Chef Ollie uses another [tex]\frac{1}{6}[/tex] of the farmland to grow kale.
Because the we need to find out how much land Chef Ollie has left, we need to subtract the amount she used from the whole. Before we can do that we must add up the total amount of used land, and since the denominators are the same we can directly add and subtract with having to change the denominator.
Step 1: Write down important numbers.
[tex]\frac{2}{6}[/tex], [tex]\frac{1}{6}[/tex],
Step 2: Add those numbers together.
[tex]\frac{2}{6} + \frac{1}{6} = \frac{3}{6}[/tex] or [tex]\frac{1}{2}[/tex]
Step 3: Write an expression/equation.
[tex]\frac{6}{6} - \frac{3}{6} \\or\\1 - \frac{1}{2}[/tex]
Step 4: Solve
= [tex]\frac{3}{6}\\or\\\frac{1}{2}[/tex]
(can be written both ways)
And you get your answer: After Chef Ollie has used [tex]\frac{2}{6}[/tex] to grow beets and [tex]\frac{1}{6}[/tex] to grow kale, she has [tex]\frac{1}{2}[/tex] of her farmland left untouched.
To represent this you could draw a circle divided in 6 pieces and shade 3 of them, or simply draw a circle and shade half. As well as drawing a rectangle and dividing it into 6 pieces, shading 3, or draw a rectangle, and shade half.
You are welcome ;) .
h/3 -5=2 solve the 2 step equation and check the soultion
Answer: h=21
Step-by-step explanation:
h/3 - 5 = 2
_h+_(-3)5__ = 2
3
_h-3x5___ = 2
3
_h-15_ = 2
3
h-15= 3x2
h-15= 6
(h-15) + 15 = 6 + 15
h-15+15=21
h=21
Darion wants to go to the bowling alley. He has to pay for a $6 shoe rental fee, and then each game he plays cost $3.50. He has no more than $20 to spend at the bowling alley. At most, how many games could Darion afford to play?
Answer:
4 Times
Step-by-step explanation:
3.50 times 4 = 14 + 6 = 20
Write 4 percent as a reduced fraction and a decimal
Answer:
1/25, 0.04
Step-by-step explanation:
Reduced fraction: 4/100 = 2/50
Decimal: 0.04
Answer:
Fraction:
1/25
Decimal:
0.04
Step-by-step explanation:
Fraction:
4/100 (4%)
100/4 = 25
4/4 = 1
1/25
Decimal:
4/100 (4%) = 0.04
Which system has no solution?
A) y=x+4 y-x=-4
B) 2y=2x+8 -2x=2y-8
C) y=1/2x+6 2x+5=y
D) y=4x+1 y-1=4x
3. A trail mix recipe includes granola, oats, and almonds. There are
135 Calories in a _ cup serving of the trail mix. How many Calories
are in 2 cups of trail mix? Pls help me with an explanation just number 3
Answer:
You can answer this by using the unitary method, which involves finding the number of calories in 1 cup first.
In
1
4
of a cup there are
135
calories
In
4
×
1
4
=
1
cup there are
4
×
135
=
540
calories
In
2
×
1
=
2
cups there are
2
×
540
=
1080
calories
You can also use the method of direct proportion:
cups
calories
=
0.25
135
=
2
x
←
cross-multiply
0.25
x
=
135
×
2
x
=
135
×
2
0.25
x
=
1080
calories
Step-by-step explanation:
Help for Brainliest...
2(a)=6. I need a really good way to explain this question to my younger cousin. She doesn't get it when I try to explain it to her. Please give a very thorough step-by-step process that you think will help my cousin! I will give brainliest.
Answer:
3
Step-by-step explanation:
1. open the bracket
i.e_ 2(a)=6
is 2×a=6
2. sum it up
2×a=6
=2a=6
3. divide both sides by the co-efficient of a which is 2.
2a\2a = 6\2a
=3a
therefore, a is 3
does anybody know the answer??
Answer:
the answer is D
Step-by-step explanation:
5<x+12
-12 -12
---------------
-7<x
The length of one side of a square is 13 ft what is the area of the square
what does fewer than mean
Answer:
Fewer than means that something is less than another thing. For example, the number 2 is fewer than the number 4. There's also this cool symbol that you can use instead of writing the words 'fewer than'. You could say for example 2<4. A fun way to remember which way the symbol points is to imagine it like an alligator, the number 2 is trying to eat the number 4 to grow!
Step-by-step explanation:
Hope this helps!
which of the following best describes the graph shown below
Answer:
A
Step-by-step explanation:
In the graph shown, no two y values share an x value. If you were to pass a vertical line through it at any point, it would only intersect it once, which makes it a function.
Many x values in the graph share y values; if you were to pass a horizontal line through it, it would intersect it more than once at certain points, which makes it NOT one-to-one.
This means that the answer is A: This is the graph of a function, but it's not one-to-one.
A colony of 3,800 bacteria doubles in size every 3
hours. What will the population be 12 hours from now?(
Answer:
45600 Bacteria
Step-by-step explanation:
Have a good day
Peace out
Answer:
60800 bacteria
Step-by-step explanation:
first find how many times it doubles: 12 hours ÷ 3 hours = 4 times
so if doubles 4 times, put [ * 2 ] four times = 3,800 * 2 * 2 * 2 * 2 = 60800
The population will be 60800 bacteria, 12 hours from now.
d+1/12=5/12 solve equation
Answer:
D = 4/12 or 1/3
Step-by-step explanation:
Answer:
d=4/12
Step-by-step explanation:
5/12-1/12= d
d=4/12
2095x30? Can I have an awnser?
Can anyone help me with this please!
